Help sharpening case stockman?

C

Cb1997

Joined
Apr 13, 2012
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I am new to sharpening and I have had a case stockman for about 2 years now. I need to sharpen it an need a little help. I have the box and in the box was the care, instructions and warranty sheet. I was looking it over and saw in sharpening it said to sharpen to a 10-15 degree angle. I like to sharpen my knives to 20 degrees on both sides instead of 15. So If I were to sharpen my blade at 20 degrees instead of 15 what it was originally at would that create two edges on my blade( one on top of the other?)
I am confused!
Thanks so much for the help.
 
Assuming the original bevels are at 15 degrees per side (30 degrees inclusive, or total), a few light passes at 20 degrees per side (40 inclusive) will create a micro bevel. That should leave a good, durable edge. That would be a very easy & quick way to touch up your blade.
 
I need help sharpening my case stockman. It has a 15 degree angle on it from the factory and I want the angle to be 20 degrees inclusive. How do I do this ? I don't want a microbevel either. I just want all 3 blades to be 20 degrees inclusive.
 
If I kept sharpening my knife at 20 degree inclusive would the edge turn into 20 degrees instead of 15 degrees overtime?
 
Cb1997 said:
How will I know if I have A micro bevel or not?
Click to expand...

Best way to see it, is to use a magnifier under bright light. Should see a thin reflection of light along the length of the edge, on both sides of the blade. If you rotate the blade in either direction, hopefully you'd see a wider reflection coming off the primary bevel, then a narrower one along the very edge itself.

Here's a good picture of a micro bevel below, linked from this site: http://sharpeningtechniques.blogspot.com/2010/10/mirco-bevel.html

The shinier bevel nearer to the edge is the micro bevel, and the darker bevel below it is the primary bevel:
micro-bevel.jpg
 
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Cb1997 said:
If I kept sharpening my knife at 20 degree inclusive would the edge turn into 20 degrees instead of 15 degrees overtime?
Click to expand...

Eventually, yes. The original bevel (15 per side) would be gradually removed and replaced with the 20-per-side bevel. There's no urgent need to rush that. I think you might find, a 20 degree micro bevel will make the edge itself more durable, and the thinner 'shoulders' of the 15-per-side bevel behind it will make fine slicing easier. Your preference is what matters though.
 
Cb1997 said:
How do you sharpen a micro bevel? Sorry for so many questions.
Thanks
Click to expand...

That's actually the easy part. Usually, the process of creating the micro bevel is all that's needed. In other words, if you just make a few light passes (maybe 3-5) on your hone at the 20-degree angle, that's all it should usually take. Because the micro bevel is so small ('micro'), there's not much metal removal to be done. It's especially easy to do, on a V-crock style sharpener (like a Sharpmaker), which has the angled rods at a pre-set 20 degrees per side (also at 15). Just keep the blade spine straight up, and the pre-set angled rods will hone at the correct angle.
 
Do microbevels sharpen away after sharpening time after time ?
 
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Cb1997 said:
Do microbevels sharpen away after sharpening time after time ?
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If you apply the same technique on subsequent touch-ups, maintaining the angle as before, then the micro bevel should stay in good shape. As you alluded to earlier, eventually the 20 degree micro bevel would completely replace the original 15 degree bevel. But that would take a lot of sharpenings, over a long period of time.
 
One last thin I know this I confusing but if I were to sharpen it so many times and the blade turned into 20 inclusive wouldnt the blade be really short because you would sharpened the whole 15 degree angle off ? Also how do you get a 20 degree Bevel out of a 15 degree bevel? For this make sense?
 
jacktrades_nbk said:
sharpen5.jpg
Click to expand...

Good illustration, thanks. :thumbup:

That's the perfect picture, for illustrating how to get a 20 degree bevel from a 15.

Cb1997 said:
One last thin I know this I confusing but if I were to sharpen it so many times and the blade turned into 20 inclusive wouldnt the blade be really short because you would sharpened the whole 15 degree angle off ? Also how do you get a 20 degree Bevel out of a 15 degree bevel? For this make sense?
Click to expand...

Even the 15 degree bevel isn't likely wider than maybe 1-2mm. So, completely removing it wouldn't take that much from the overall blade width. Under normal use and proper light maintenance like stropping, you shouldn't have to remove even that amount of the steel for a very long time.
 
Can you see a micro bevel? I sharpened it 20 inclusive both sides 3-5 swipes each side and I Cant see the micro bevel.
Is it visible to the human eye
 
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